07-19-2019, 09:11 PM
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Flying since 1977
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Join Date: Oct 2010
Location: Middle TN
Posts: 455
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The first appearance of BT-80 in an Estes kit was in the K-36 Saturn V in 1969. It was used for the body tube of the S-IVB third stage. Its next appearance was in the 1269 Maxi Honest John.
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'Til next time,
Mike Toelle
NAR 31692 L1
SAM 0373
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